The preferred power source for a A-CAC torch is a(n) ____

The preferred power source for a A-CAC torch is a(n) _____.

a. AC constant-voltage machine
b. DC constant-current machine
c. AC or DC constant-voltage machine
d. DC constant-voltage machine

[Ques. 2] A primary purpose of the A-CAC process is to _____.

a. gouge weld grooves and prepare cracks for welding
b. weld carbon steel pipes
c. cut nonmetal materials such as ceramics
d. create V-groove welds on carbon steel plate

[Ques. 3] The A-CAC process can be used in _____.

a. all positions on any metal that will conduct electricity
b. all positions on any material
c. the 1G-rotated position on aluminum only
d. the 2G, 5G, and 6G positions on carbon steel and its alloys only

[Ques. 4] Flame rectification is used on a(n) _____.

a. HSI
b. spark igniter
c. automatic gas valve
d. standing pilot

[Ques. 5] Sputtering or hissing of the torch is often caused by _____.

a. metal debris in the heat shield
b. using air that does not contain sufficient oil
c. using air that does not contain sufficient moisture
d. moisture entering the unit through the air line

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The preferred power source for a A-CAC torch is a(n) _____.

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